as we adopt the wave function of a spherical harmonic oscillator as in Refs. [1]}, [2]}.
The superscript `\(^{\prime }\) ' in the coordinate or momentum variable denotes the hadronic coordinate or momentum in the rest frame of the \(h_1h_2\) -pair.
\(m_1\)  and \(m_2\)  are the rest mass of hadron \(h_1\)  and that of hadron \(h_2\) .
The width parameter \(\sigma =\sqrt{\frac{2(m_1+m_2)^2}{3(m_1^2+m_2^2)}} R_{L_{j}}\) ,
where \(R_{L_{j}}\)  is the root-mean-square radius of \(L_{j}\)  and its values for different light nuclei can be found in Ref. [3]}.
The factor \(\hbar c\)  comes from the used GeV\(\cdot \) fm unit, and it is 0.197 GeV\(\cdot \) fm.
